我的以下代码没有产生预期的输出:publicstaticvoidmain(String[]args)throwsMalformedURLException{Configuration.addDefaultResource("/home/some_user/conf.xml");Configurationconf=newConfiguration();System.out.println(conf);System.out.println(conf.get("color"));assertThat(conf.get("color"),is("yellow"));}属性color在conf.